Telemotor



E. SCHNEIDER.

TELEMOTOR.

APPLICATION FILED JULY 21, I920.

Patented 01%.,18, 1921.

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E. SCHNEIDER .TELEMDTOR.

APPLICATION FILED JULY 21-. 1920.

Patented Oct. 18, 1921;

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E. SCHNEIDER. TELEMOTOR; APPLICATION FILED JULY ZI I920 93 '3 7 Patented001;. 18, 1921.

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l E. .SCHNEID'ER.

TELEMOTOR. APPLICATION FILED JULY 21, I920- H N In.

UNITE V EUGENE SCHNEIDER, OF PARIS, FRANCE, ASSIGNOR TO SCHNEIDER & CIE,OF PARIS,

FRANCE, A LIMITED JOINT-STOCK COMPANY OF FRANCE.

TELEMO'I'OR.

To all whom it may concern:

Be it known that I, EUGENE SCHNEIDER, a citizen of the Republic ofFrance, resident of Paris, France, have invented new and usefulImprovements in Telemotors, which invention is fully set forth in thefollowing specification.

In installations of apparatuses comprising aplurality of mechanismsactuated by fluid pressure, it is advisable to group the actuatingmechanisms of the apparatuses as a whole in a common control stationsothat a single operator is enabled to control their working.

It may however be necessary in case the source of energy should becomeunavailable, to provide for each apparatus, conjointly with the distantfluid controlling mechanism, an emergency hand-control mechanism locatednear the said apparatus. In such a case, when the control mechanism isbrought into operation, it is necessary that the fluid contained in theoperating motor shall be able to pass from one side of the piston to theother by flowing in pipes connecting the motor to the distributer.

In order to diminish the distance the fluid must traverse in the case ofhand control, it has already been proposed to provide near the motor andin the circuit of the latter, a branch which terminates at the'two endsof the motor cylinder and which is normally closed by a cock that isopened when it is desired to employ hand control.

The present invention consists in an improvement on that knownmechanism. It consists essentially in a linking arrangement between thehand-wheel or other member of the hand control mechanism, and theshortcircuiting cock, that is to say, the'cock on the branch thatconnects together the ends of the motor cylinder. This linkingarrangement is such that when theoperator operates the hand controlwheel, he opens automatically the said short-circuiting cock of themotor irrespectively of the direction of the operation, and the releaseof the said handwheel causes automatically the cock to return into itsclosed position. This inter linking of the hand control device and theshort-circuiting cock dispenses with one operation and besides obviatesthereby any wrong maneuver.

Complementary Figs. 1 and 1 of the accompanying drawings is adiagrammatic Specification of Letters Patent. Patgnted Get. 18 1921.

1920.; Serial No. 397,947.

elevation of the general arrangement of hydraulic mechanism andhandcontrolmechanlsm for actuating a mechanism or device such as asluice valve, and comprising the improved apparatus of the presentinvention; the parts are shown in the positions they occupy forhydraulic operation.

Fig. 2 is a partial horizontal section on the line 2-2 of Fig. 1

Fig. 3 is a detail elevation on a larger scale showing the hand controlwheel and the short-circuiting cock linked together in the positionstheyassume'automatically as soon as the said wheel is operated.

Fig. 4: is a corresponding plan.

Fig. 5 is a similar plan showing the parts in the rest position, that isto say, when the cock is closed.

Fig. 6 is a detail vertical section of the apparatus comprising the handcontrol wheel and short-circuiting cock interlinked.

Fig. 7 is a horizontal section on the line 7'7 of Fig. 3.

Fig. 8 is a Fig. 6.

Referring to Fig. 1, A is the distributer for operating hydraulicallyfrom a distance a device such as a sluice valve B. In Figs. 1 and 2, Cindicates a motor whose piston D receives alternately on its facesthrough the ducts E, E and F, Fflpressure fluid from a suitable supplycontrolled by the distributeror valve mechanism A- in the system.

The hand control mechanism is located as near as possible to the deviceBto be actuated inorder to avoid great lengths of me chanical gearing.

According to the present invention, the installation comprises amechanical linking arrangement between the hand control device such asthe hand-wheel H, and a cock G for circuiting the ends E F of the ductsE. F.

In the example shown, this interlinking is eifected as follows The shaftI by which the hand control section on the line 88 of motion istransmitted by means of the gearof this clutch is connected to theshort-circuiting cock G. The other element K is con nected to the handcontrol wheel H- The arrangement is such that the counter-spring Lwhichhas a constant tendency to keep the sleeve J engaged with the sleeve K,has also a tendency to close the short-circuiting cock G. Inversely, ifthe operator by operating -the"hand-wheel H, acts upon the clutch insuch a manner as to' move the clutch elements and compress thecounter-spring L, thereby coupling together the two sections I and I ofthe hand control shaft, he will automatically open the cock G.

In practice, the hand wheel H is loose on a sleeveM engaged on a squarepart of the shaft 1 so that the hand-wheel is not use lessly moved whenthe hand control is not being used. The hand-wheel can be coupled to thesleeve M immediately it is desired to move it in one direction or theother. For this purpose it comprises a folding handle 71. pivoted on apin h carried by a block 71. fixed to the said hand wheel. This handlewhen at rest is folded back into the position shown in Fig. 6. In thisposition it pushes back a bell crank lever N, N pivoted at n' to thehand-wheel, and it thereby by means of the arm N moves away from theaxle of the hand-wheel, a spring bolt 0 that is normally enga ed betweenthe teeth of a ratchet wheel H fixed to the sleeve M.

It will be readily perceived that the turning of the handle outward intothe position shown in Fig. 3, for the purpose of operating thehand-wheel, will cause the bolt 0 to engage between the teeth of theratchet wheel P and thus couple the hand-wheel to the shaft section I.

The clutch JK comprises an element K fixed to the shaft section I. Thiselement consists of a sleeve cut so as to form two claws havingextensions in the form of diverging inclines is. When at rest, the wholek7c of these claws and inclines is engaged between the complementaryclaws and inclines of the sleeve J constituting the other element of theclutch. The inclines 7c are situated opposite the corresponding inclinesj.

The interpenetration of the two elements J and K is such that duringrest, a claw k is engaged between two inclines 7', while a claw 7' isengaged between two inclines Is. The sleeve J slides along a square,part of the shaft I.

The counter-spring L bears at one end upon the sleeve J and at its otherend upon a fixed point that may be situated on the common frame Qcarrying the shafts I, I and the cock G.

For the purpose of coupling the clutch element J to the cock G, thesleeve J is formed witha groove- J in which engage studs r of branches Rof two bell crank levers BR fulcrumed on a pin 7" carried by the frameQ. The arms R of these levers are pivoted at their free ends to studs 9eccentrically carried by the plug G of the short-circuiting cock. Thecasing G of this cock can be formed in the frame Q.

As shown'in detail in Figs. 6, 7 and 8, the two pipe sections E F whichare to be short-circuited during hand control, 0 en at one of their endsin the cock casing 1 into which there also open the pipes E, F leadingto the distributer A. The cock plug G is pierced with two transverseducts Gr and a longitudinal duet G.

Th improved apparatus operates as follows For controlling at a distanceby means of fluid pressure, the parts are brought into the positionshown in Figs. 1, 2, (Sand 8. The handle h is raised; the bolt 0 ismoved out of the way; the hand-wheel H is looseon the sleeve M; theclutch elements J and K are engaged with each other; and the expandedspring L keeps the cock in the position shown in Figs. 6 and 8 in whichitallows v the fluid to flow from one side of the piston to the otherthroughout the extent of the pipes E, E F, F through the medium of thedistributer A.

When itis desired to employ hand control, the handle h is depressed bymoving'it into the position shown in Figs. 3 and 4:, thus causin by theexpansion of the spring 0, the bolt 6 to engage between the teeth of theratchet wheel P and thus lock the handwheel H on the shaft section Iately the hand-wheel H is moved in one or the other direction, theinclines 7c of the clutch elements K exert a pressure upon the claws jof the element J. The latter is thereby forced toward the leftcompressingthe spring L, and by means of the groove J moving the bellcrank levers R, R so as to cause a rotation of the cock plug G as soonas the hand-Wheel has been rotated through a quarter of a revolution. Bythis means the claws 70 after sliding over the inclines 7', are movedinto contact with the claws y", and the shoulders 70 bear against theshoulders 7' (Figs. 3 and 4).

By continuing the rotation, the clutch element J is carried around bythe element K; the groove J turning on the studs 0 of the lever arms RThe parts then occupy the positions shown in Figs. 3, 4 and 7 ,where thecock plug Gr short-circuits by means of the duct G the pipe sections Eand F As soon as the operator releases the'handwheel H, the spring Lexpands, and the parts resume automatically the positions they occupy asshown in Figs. 5, 6 and 8,

mere actuation of the hand control device Immedi- H, and that inverselythe'mere action of releasing the said hand control device reestablishesautomatically connection between the motor and the distant controldistributer A.

As a matter o f fact for changing from hand control over tofluid-pressure distant control and vice versa, the operator need notoperate any cock, so that this invention not only does away with oneoperation in each case but also obviates any wrong move in all cases. i

Having now particularly described and ascertained the nature of my saidinvention and in what manner the same is to be performed, I declare thatwhat I claim is 1. In a telemotor, the combination with a device to beactuated, of manually operated means for actuating said device, a motoroperatively included in a fluid-pressure system controlled at a distancefor actuating said device independently of the manually operated means,and a valve interposed in the system to be actuated by the manuallyoperated means to short-circuit the motor -while the device is actuatedby said manuvice, manually operated means for actuating said deviceindependently of the motor, and a valve interposed in the system to beactuated by the manually operated means to short-circuit themotor,thereby permitting free flow of the liquid from one side of the movableelement of the motor to the other side thereof as said element isincidentally moved through its connection with the device actuated bythe manually operated means.

3. In a telemotor, the combination with a device to be actuated, of amotor operatively included in a fluid-pressure system controlled at adistance for actuating said device, manually operated means foractuating said device independently of the motor, a valve interposed inthe system to be actuated by the manually operated means toshort-circuit the motor, thereby permitting free flow of the liquid fromone side of the movable element of the motor to the other side thereofas said element is incidentally moved through its connection with thedevice actuated by the manually operated means, and spring-pressed meansoperating to return the valve to its original position on release of themanually operated means to reestablish the communication between themotor and the fluid-pressure system.

In a telemotor, the combination with a device to be actuated, ofmanually operated means for actuating said device, a fluidpressure motorfor actuating said device independently of the manually operated means,fluid-pressure supply pipes controlled at a distance and communicatingwith the opposite sides of the motor, and a valve controlling thepassages through the supply pipes actuated by the operation of themanually operated means to short-circuit the motor, thereby establishinga direct communication between opposite sides of the motor tfor the flowof fluid from'one side of the movable element of the motor to the otherside thereof while said element is incidentally moved through itsconnection with the device actuated by the manually operated means.

5. In a telemotor, the combination with a device to be actuated, of amotor operatively included in a fluid-pressur system controlled'at adistance for actuating said device, a valve interposed in the system tobe operated to short-circuit the motor, manually operated means foractuating said device independently of the motor, said means comprisingshafting having a driving con nection with said device and includingengaging clutch members with one of said members movable relatively tothe other member by the rotation of said shafting, and mechanism fortransmitting motion from the relatively movable clutch member to thevalve to actuate the latter to short-circuit the motor during therotation of said shafting.

6. In a telemotor, the combination with a device to be actuated, of amotor operatively included in a fluid-pressure system controlled at adistance for actuating said device, a valve interposed in the system tobe operated to short-circuit the motor, manually operated means foractuating said device independently of the motor, said means comprisingshafting having a driving connection with said device and includingengaging clutch members with one of said members movable relatively tothe other member by the rotation of said shafting, mechanism fortransmitting motion from the relatively movable clutch member to thevalve to actuate the latter to short-circuit the motor during therotation of said shafting, nd a spring normally pressing the movableclutch member to return the same to its initial position when themanually operated means is released, the return of the movableclutch'member to its initial position operating through the transmittingmechanism to return the valve to its original position to reestablishthe communication between the motor and the system.

7 In a telemotor, the combination with a device to be actuated, of amotor operatively included in a fluid-pressure system controlled at adistance for actuating said device, a valve interposed in the system toshort-circuit the motor, manually operated means for actuating saiddevice independently of the motor, said means comprising shafting havinga driving connection with said device and including clutch membershaving mutual engaging faces to reciprocate one of said clutch memberswhen the shafting is rotated, and mechanism for transmitting the motionof the reciprocated clutch member to the valve to actuate the latter toshort-circuit the motor during the rotation of said shafting.

8. In a telemotor, the combination with a device to be actuated, of amotor operatively included in a fluid-pressure system controlled at adistance for actuating said device, a valve interposed in the system toshort-circuit the motor, manually operated means for actuating saiddevice independently of the motor, said means comprising shafting havinga driving connection with said device and including clutch membershaving mutual engaging faces to reciprocate one of said clutch memberswhen the shaft ing is rotated, mechanism for transmitting,

term to short-circuit the motor, manually operated means for actuatingsaid device independently of the motor, said means com prising shaftin'ghaving a driving connection with said device and including clutchmembers having mutual engaging faces to reciprocate one of said clutchmembers when the shafting is rotated, a bell-crank pivoted to a fixedpart having one arm eccentrically connected with an end of the rotatablevalve and having the other arm provided with a sliding engagement withthe reciprocative clutch member so that the angular displacement of thebell-crank by the movement of the reciprocative clutch member willrotate the'valve to short-circuit the motor during the rotation of theshafting, and a spring normally pressing the reciprocative clutch memberto return the same to its original position when the manually operatedmeans is released, the return of the reciprocative clutch member to itsoriginal position opera'ting through the bell-crank connection to turnthe valve to reestablish the communication between the motor and thesystem. Dated this 23rd day of January, 1920. In testimony whereof Ihave signed this specification.

EUGENE SCHNEIDER.

l/Vitnesses:

ANDRE MosTIoKER, CLEMENT S. EDWARDS.

